package br.com.system.authentication;
import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class AuthenticationFilter implements Filter {


	@Override
	public void destroy() {
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		
		if (((HttpServletRequest) request).getSession().getAttribute(AuthenticationBean.authenticationKeyName) == null) {
			((HttpServletResponse) response).sendRedirect("../login.jsf");
		} else {
			chain.doFilter(request, response);
		}
	}

	@Override
	public void init(FilterConfig config) throws ServletException {
	}

}
